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एक से अधिक उत्तर प्रकार के प्रश्न

Let A and B be square matrices of the same order, then which of the following is/are true?

माना A B समान कोटि वाले वर्ग आव्यूह हैं, तब निम्न में से कौनसा/कौनसे विकल्प सही है/हैं?

A
If AT = A, then A is a symmetric matrix

यदि AT = A, तब A एक सममित आव्यूह है
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B
If A2 = I, then A is an invertible matrix

यदि A2 = I, तब A एक व्युत्क्रमणीय आव्यूह है
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C
If A + AT = 0, then A is a symmetric matrix

यदि A + AT = 0, तब A एक सममित आव्यूह है
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D
If AB = O, then either A or B must be a zero matrix

यदि AB = O, तब या तो A या B शून्य आव्यूह होगा
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Solution

The correct option is B If A2 = I, then A is an invertible matrix

यदि A2 = I, तब A एक व्युत्क्रमणीय आव्यूह है
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